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Title: Structure evolution and thermoelectric properties of carbonized polydopamine thin films

Abstract

Carbonization of nature-inspired polydopamine can yield thin films with high electrical conductivity. Understanding of the structure of carbonized PDA (cPDA) is therefore highly desired. In this study, neutron diffraction, Raman spectroscopy, and other techniques indicate that cPDA samples are mainly amorphous with some short-range ordering and graphite-like structure that emerges with increasing heat treatment temperature. The electrical conductivity and the Seebeck coefficient show different trends with heat treatment temperature, while the thermal conductivity remains insensitive. Finally, the largest room-temperature ZT of 2 × 10 –4 was obtained on samples heat-treated at 800 °C, which is higher than that of reduced graphene oxide.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [3];  [3];  [1];  [1]
  1. Temple Univ., Philadelphia, PA (United States)
  2. Univ. of Delaware, Newark, DE (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1350939
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 9; Journal Issue: 8; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; neutron total scattering; polydopamine; Raman spectroscopy; seebeck coefficient; thermal conductivity; thermoelectric

Citation Formats

Li, Haoqi, Aulin, Yaroslav V., Frazer, Laszlo, Borguet, Eric, Kakodkar, Rohit, Feser, Joseph P., Chen, Yan, An, Ke, Dikin, Dmitriy A., and Ren, Fei. Structure evolution and thermoelectric properties of carbonized polydopamine thin films. United States: N. p., 2017. Web. doi:10.1021/acsami.6b15601.
Li, Haoqi, Aulin, Yaroslav V., Frazer, Laszlo, Borguet, Eric, Kakodkar, Rohit, Feser, Joseph P., Chen, Yan, An, Ke, Dikin, Dmitriy A., & Ren, Fei. Structure evolution and thermoelectric properties of carbonized polydopamine thin films. United States. doi:10.1021/acsami.6b15601.
Li, Haoqi, Aulin, Yaroslav V., Frazer, Laszlo, Borguet, Eric, Kakodkar, Rohit, Feser, Joseph P., Chen, Yan, An, Ke, Dikin, Dmitriy A., and Ren, Fei. Mon . "Structure evolution and thermoelectric properties of carbonized polydopamine thin films". United States. doi:10.1021/acsami.6b15601. https://www.osti.gov/servlets/purl/1350939.
@article{osti_1350939,
title = {Structure evolution and thermoelectric properties of carbonized polydopamine thin films},
author = {Li, Haoqi and Aulin, Yaroslav V. and Frazer, Laszlo and Borguet, Eric and Kakodkar, Rohit and Feser, Joseph P. and Chen, Yan and An, Ke and Dikin, Dmitriy A. and Ren, Fei},
abstractNote = {Carbonization of nature-inspired polydopamine can yield thin films with high electrical conductivity. Understanding of the structure of carbonized PDA (cPDA) is therefore highly desired. In this study, neutron diffraction, Raman spectroscopy, and other techniques indicate that cPDA samples are mainly amorphous with some short-range ordering and graphite-like structure that emerges with increasing heat treatment temperature. The electrical conductivity and the Seebeck coefficient show different trends with heat treatment temperature, while the thermal conductivity remains insensitive. Finally, the largest room-temperature ZT of 2 × 10–4 was obtained on samples heat-treated at 800 °C, which is higher than that of reduced graphene oxide.},
doi = {10.1021/acsami.6b15601},
journal = {ACS Applied Materials and Interfaces},
number = 8,
volume = 9,
place = {United States},
year = {Mon Feb 13 00:00:00 EST 2017},
month = {Mon Feb 13 00:00:00 EST 2017}
}

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Cited by: 4 works
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